#40B1CD#40B1CD

#40B1CD is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.8% C 0.107 H 217.6°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#40B1CD
RGB	rgb(64, 177, 205)
HSL	hsl(192, 59%, 53%)
HSV	hsv(192, 69%, 80%)
CMYK	cmyk(68.8%, 13.7%, 0%, 19.6%)
CIE-LAB	lab(67.23, -22.72, -23.47)
CIE-LCH	lch(67.23, 32.67, 225.92°)
OKLab	oklab(70.84% -0.0849 -0.0654)
OKLCH	oklch(70.84% 0.107 217.6)
XYZ	xyz(28.8514, 36.9388, 63.3551)
Luminance	0.3694 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B1CD #CD5C40

analogous

#40CDA2 #40B1CD #406ACD

triadic

#40B1CD #CD40B1 #B1CD40

tetradic

#40B1CD #A240CD #CD5C40 #6ACD40

square

#40B1CD #A240CD #CD5C40 #6ACD40

split-complementary

#40B1CD #CD406A #CDA240

monochromatic

#1E6374 #2B8DA5 #40B1CD #71C5DA #A1D9E6

Accessibility & contrast

On white

2.50

#40B1CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#40B1CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1CD

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B1CD	#FFFFFF	#000000	##000000
##40B1CD	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FACCF

Deuteranopia (green-blind)

#8B9DCD

Tritanopia (blue-blind)

#00BBBA

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b1cd;
/* rgb */ color: rgb(64, 177, 205);
/* oklch */ color: oklch(70.8% 0.107 217.6);

Tailwind

colors: {
  custom: {
    50: '#86c8dc',
    500: '#40b1cd',
    950: '#000000',
  },
}

SCSS

$custom: #40b1cd;
$custom-light: #86c8dc;
$custom-dark: #000000;

JSON

{
  "hex": "#40b1cd",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 205
  },
  "hsl": {
    "h": 191.915,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.70843,
    "c": 0.10721,
    "h": 217.6
  },
  "luminance": 0.36942
}

Semantic roles & 50–950 ramp

primary

#40B1CD

secondary

#D3A296

accent

#6546E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B1CD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →